CN1104055C - Hermetically sealed structure for junction of two waveguides - Google Patents
Hermetically sealed structure for junction of two waveguides Download PDFInfo
- Publication number
- CN1104055C CN1104055C CN96112102.5A CN96112102A CN1104055C CN 1104055 C CN1104055 C CN 1104055C CN 96112102 A CN96112102 A CN 96112102A CN 1104055 C CN1104055 C CN 1104055C
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- CN
- China
- Prior art keywords
- waveguide
- circular
- circular waveguide
- waveguides
- elliptic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 claims description 21
- 238000004512 die casting Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 description 7
- 230000012447 hatching Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000014616 translation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/08—Dielectric windows
Landscapes
- Waveguide Connection Structure (AREA)
- Waveguides (AREA)
Abstract
A first circular waveguide or an elliptical waveguide has an inner circumferential surface tapered such that its inside dimension is gradually reduced continuously toward an end thereof. The elliptical waveguide comprises an antenna waveguide connected to an antenna device. Another circular waveguide has an end joined to the end of the first circular waveguide or the elliptical waveguide. Both waveguides have different inside dimensions at the joined ends. A hermetic seal is sandwiched between the joined ends of both the waveguides. The tapered inner circumferential surface is effective to cancel out a susceptance produced by the hermetic seal. The first waveguide with the tapered inner circumferential surface can easily be manufactured by die casting.
Description
The present invention relates to a kind of hermetically-sealed construction that is used for the joint of two waveguides, for example feed waveguide in microwave circuit and antenna wave guide.
The conventional seals structure of the joint that is used for two circular waveguides is described below in conjunction with Fig. 1 (a), 1 (b) of accompanying drawing and 2 (a), 2 (b).
Fig. 1 (a) and Fig. 2 (a) are cross-sectional views, and Fig. 2 (b) is partial longitudinal section figure.
Fig. 1 (a) and 1 (b) expression are used for the conventional seals structure of the joint of two waveguides.Shown in Fig. 1 (a) and 1 (b), an end of circular waveguide 1 seals 3 the joint and the end coupling of another circular waveguide 2 by having disc seal between the coupled end that is clipped in circular waveguide 1,2.This joint also comprises a ring washer 4, is placed in the cannelure of this end defined of circular waveguide 2, and installs facing to the pressurizing window sealing.Circular waveguide 1 can be used as the antenna wave guide that is connected with antenna assembly, and circular waveguide work is the feed waveguide that is connected with receiver apparatus with radio transmitter.
Realize impedance matching in order to eliminate by the susceptance of pressurizing window 3 generations and at joint, circular waveguide 1 has a susceptance corrector loop 5, radially near the link of inwardly protruding pressurizing window 3.
Fig. 2 (a) and 2 (b) expression are used for another conventional seals structure of the joint between two circular waveguides.In Fig. 2 (a) and 2 (b), represent with identical label with the same parts shown in Fig. 1 (a) and 1 (b).Its difference of conventional seals structure shown in common hermetically-sealed construction shown in Fig. 2 (a) and Fig. 2 (b) and Fig. 1 (a) and 1 (b) is: susceptance adjusting screw 6 is installed in the appropriate location near the inner peripheral wall surface of pressurizing window 3 circular waveguides 1.
Conventional seals structure shown in Fig. 1 (a) and 1 (b) structurally is complicated with expensive, and its reason is because the cause of the susceptance corrector loop 5 on circular waveguide 1.
Because the conventional seals structure shown in Fig. 2 (a) and 2 (b), after circular waveguide 1 was assembled, it need insert and regulate susceptance adjusting screw 6.If circular waveguide 1,2 is used for the open air, then hermetically-sealed construction must have water-tight structure.
In addition, if adopt two frequency translations polarization with the antenna of circular waveguide 1 coupling, then because the correcting value of polarization components is different mutually separately, the conventional seals structure is structurally more complicated.
An object of the present invention is to provide the hermetically-sealed construction of utmost point simple structure of the joint of a kind of joint that is used for two circular waveguides or elliptic waveguide and circular waveguide, wherein can eliminate the impedance mismatching that the susceptance by pressurizing window produces in the joint.
According to the present invention, a kind of hermetically-sealed construction that is used for the joint of two circular waveguides is provided, wherein pressurizing window is sandwiched between the end face of two circular waveguides, and this structure comprises:
First circular waveguide has the interior diameter that reduces gradually continuously to the one end that is connected with an end of second circular waveguide;
Second circular waveguide has the port that is connected with this end of first circular waveguide; With
First circular waveguide has the interior diameter less than second circular waveguide in the port that connects by pressurizing window.
One in first and second circular waveguides can comprise the antenna wave guide that is connected with antenna assembly, can comprise the feed waveguide that is connected with radio transmitter/receiver apparatus with another of first and second circular waveguides.
The hermetically-sealed construction that provides another kind to be used for the joint of elliptic waveguide and circular waveguide, wherein pressurizing window is clipped between the end face of elliptic waveguide and circular waveguide, and this structure comprises:
Elliptic waveguide has an end that is connected to an end of circular waveguide, and it keeps similar shape, and interior diameter reduces continuously gradually;
Circular waveguide has an end and is connected with this end of elliptic waveguide; With
Elliptic waveguide has the interior diameter less than circular waveguide at this end place that connects by pressurizing window.
Elliptic waveguide can comprise the antenna wave guide that is connected with antenna assembly, and circular waveguide can comprise the feed waveguide that is connected with radio transmitter/receiver apparatus.
The two has the taper inner circumferential surface first circular waveguide and elliptic waveguide, so that its inside dimension reduces continuously to its end gradually.The taper inner circumferential surface can be eliminated the susceptance that is produced by pressurizing window effectively.
By below in conjunction with the shown the description of the drawings of the preferred embodiments of the present invention, above and other objects of the present invention, feature and advantage will become apparent.
Fig. 1 (a) is the conventional seals structure that is used for the joint between two circular waveguides, and this figure is an A-A hatching line of getting Fig. 1 (b);
Fig. 1 (b) is the partial longitudinal section figure of the conventional seals structure shown in Fig. 1 (a);
Fig. 2 (a) is the cross-sectional view that is used for another conventional seals structure of the joint between two circular waveguides, and this figure gets the A-A hatching line of Fig. 2 (b);
Fig. 2 (b) is the partial longitudinal section figure of conventional seals structure shown in Fig. 2 (a);
Fig. 3 (a) is the cross-sectional view that is used for the hermetically-sealed construction of the joint between two circular waveguides according to one embodiment of present invention, and this figure is the hatching line A-A that gets Fig. 3 (b);
Fig. 3 (b) is the partial longitudinal section figure of the hermetically-sealed construction shown in Fig. 3 (a);
Fig. 4 (a) is the cross-sectional view that is used for the hermetically-sealed construction of the joint between elliptic waveguide and circular waveguide according to another embodiment of the invention, and this figure is an A-A hatching line of getting Fig. 4 (b); With
Fig. 4 (b) is the partial longitudinal section figure of the hermetically-sealed construction shown in Fig. 4 (a).
Fig. 3 (a) and 3 (b) expression is used for the hermetically-sealed construction of the joint of two circular waveguides according to one embodiment of present invention, and an end of circular waveguide 1 seals an end of 3 joint and another circular waveguide 2 and is coupled by having disc seal between the coupled end that is clipped in circular waveguide 1,2.This joint also comprises a ring washer 4, is placed in the cannelure of this end defined of circular waveguide 2, and installs facing to the pressurizing window sealing.Circular waveguide 1 is used as the antenna wave guide that is connected with antenna assembly, the feed waveguide that 2 conducts are connected with radio transmitter/receiver apparatus with circular waveguide.
Fig. 4 (a) and 4 (b) expression are used for the hermetically-sealed construction of the joint of elliptic waveguide and circular waveguide according to another embodiment of the invention.In this case, the cross section of waveguide 1 is oval interior shape, and the rounded interior shape of the cross section of waveguide 2.Therefore, the difference of the hermetically-sealed construction of the hermetically-sealed construction shown in Fig. 4 (a) and 4 (b) and Fig. 3 (a) and 3 (b) only is: the taper inner peripheral wall surface 7 of waveguide 1 provides one oval mouthful in the joint, shown in Fig. 4 (a).
Shown in Fig. 3 (a), 3 (b) and 4 (a), 4 (b), circle or elliptic waveguide 1 are because the inner peripheral wall surface 7 of its taper has the shape of different input and output sides, different mutually with the circle of circular waveguide 1,2 or oval size at pressurizing window 3 places, thus make it may remove to compensate susceptance by pressurizing window 3 generations.
Because inner peripheral wall surface 7 is that to be used in the waveguide dimensions that reduces continuously gradually on the direction of principal axis of joint axially tapered, circle or elliptic waveguide 1 cause making with die casting, and can make very at an easy rate, whether have round interior cross section with waveguide 1 and have nothing to do with oval interior cross section.
The scheme of embodiment above utilizing, circle or the difference output of elliptical guide and the shape of input with its taper inner peripheral wall surface 7 produces are used to compensate the susceptance that is produced by pressurizing window 3.Therefore, need not increase additional member for susceptance correction or impedance matching, for example, ring or screw.Hermetically-sealed construction according to the present invention be simple in structure and manufacturing price cheap.
In this situation, when the antenna with the elliptic waveguide coupling adopted two frequency translation polarization, the hermetically-sealed construction that is used for the joint of elliptic waveguide and circular waveguide can be simplified greatly by adopting the embodiment shown in Fig. 4 (a) and 4 (b).
Though represented and described some preferred embodiment of the present invention in detail, be understood that the scope that wherein can carry out various variations and remodeling and not break away from accessory claim.
Claims (4)
1. hermetically-sealed construction that is used for the joint of two circular waveguides, wherein pressurizing window is clipped between the end face of described two circular waveguides, and this structure comprises:
First circular waveguide has the interior diameter that reduces gradually continuously to an extreme direction that is connected with an end of second circular waveguide;
Second circular waveguide has an end that is connected with this end of described first circular waveguide; With
Described first circular waveguide has the interior diameter less than described second circular waveguide at this end place that connects by described pressurizing window.
2. according to a kind of hermetically-sealed construction of claim 1, wherein one of first and second circular waveguides comprise the antenna wave guide that is connected with antenna assembly, and another of first and second circular waveguides comprises the feed waveguide that is connected with radio transmitter/receiver.
3. hermetically-sealed construction that is used for the joint of elliptic waveguide and circular waveguide, wherein pressurizing window is clipped between described elliptic waveguide and the described circular waveguide, and this structure comprises:
Elliptic waveguide has an end that is connected to an end of circular waveguide, and it keeps the interior diameter that reduces gradually continuously of similar shape;
Circular waveguide has an end and is connected with the described end of described elliptic waveguide; With
Described elliptic waveguide has the interior diameter less than described circular waveguide at this end place that connects by described pressurizing window.
4. according to a kind of hermetically-sealed construction of claim 3, wherein said elliptic waveguide comprises the antenna wave guide that is connected with antenna assembly, comprises the feed waveguide that is connected with radio transmitter/receiver apparatus with described circular waveguide.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP192814/1995 | 1995-07-28 | ||
| JP192814/95 | 1995-07-28 | ||
| JP19281495A JP3341101B2 (en) | 1995-07-28 | 1995-07-28 | Antenna airtight structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1150703A CN1150703A (en) | 1997-05-28 |
| CN1104055C true CN1104055C (en) | 2003-03-26 |
Family
ID=16297437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96112102.5A Expired - Fee Related CN1104055C (en) | 1995-07-28 | 1996-07-27 | Hermetically sealed structure for junction of two waveguides |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5668513A (en) |
| EP (1) | EP0756349B1 (en) |
| JP (1) | JP3341101B2 (en) |
| CN (1) | CN1104055C (en) |
| DE (1) | DE69615961T2 (en) |
| TW (1) | TW310487B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1158597A1 (en) * | 2000-05-23 | 2001-11-28 | Newtec cy. | Ka/Ku dual band feedhorn and orthomode transducer (OMT) |
| JP5477362B2 (en) * | 2011-11-17 | 2014-04-23 | 三菱電機株式会社 | Polarization splitter |
| CN104137326B (en) * | 2012-02-21 | 2016-10-19 | 日本电气株式会社 | Connection structure between antenna device and radio communication device |
| US9212942B2 (en) * | 2012-07-04 | 2015-12-15 | Vega Grieshaber Kg | Waveguide coupling, high-frequency module, fill-level radar and use |
| CN103474768B (en) * | 2013-09-17 | 2018-06-26 | 国家电网公司 | A kind of circular waveguide antenna feeder antenna system |
| CN104051836A (en) * | 2014-06-10 | 2014-09-17 | 首都师范大学 | A terahertz waveguide coupler |
| CN104534090A (en) * | 2014-12-12 | 2015-04-22 | 中国电子科技集团公司第二十三研究所 | Air-seal flange for air inflation type oval-rectangular converting waveguide |
| CN111509337A (en) * | 2020-06-04 | 2020-08-07 | 盛纬伦(深圳)通信技术有限公司 | Waveguide interface structure for preventing electromagnetic wave signal leakage |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB805920A (en) * | 1955-07-07 | 1958-12-17 | Gen Electric Co Ltd | Improvements in or relating to waveguide arrangements including windows for passing electromagnetic waves |
| GB837192A (en) * | 1955-08-02 | 1960-06-09 | British Thomson Houston Co Ltd | Improvements relating to electrical waveguide systems |
| US3221278A (en) | 1962-07-13 | 1965-11-30 | Hughes Aircraft Co | Microwave tube transformer-window |
| US3221206A (en) | 1964-02-21 | 1965-11-30 | Varian Associates | Output window and coupler for high frequency electron discharge device |
| DE1491484A1 (en) * | 1964-03-13 | 1969-10-16 | Telefunken Patent | Microwave tubes |
| US3860891A (en) | 1970-12-30 | 1975-01-14 | Varian Associates | Microwave waveguide window having the same cutoff frequency as adjoining waveguide section for an increased bandwidth |
| US3753171A (en) | 1971-04-05 | 1973-08-14 | Varian Associates | Composite microwave window and waveguide transform |
| US4041420A (en) * | 1976-06-30 | 1977-08-09 | Riblet Henry J | Shunted stepped waveguide transition |
| US4352077A (en) * | 1979-05-18 | 1982-09-28 | Varian Associates, Inc. | Ridged waveguide window assembly |
| DE3631981C1 (en) * | 1986-09-19 | 1987-12-17 | Georg Dr-Ing Spinner | Transformation part for connecting two waveguides with different cross-sectional shapes |
| IT1252387B (en) * | 1991-11-12 | 1995-06-12 | Telettra S P A Ora Alcatel Ita | FLANGES AND BODIES FOR MICROWAVE WAVE GUIDE COMPONENTS |
-
1995
- 1995-07-28 JP JP19281495A patent/JP3341101B2/en not_active Expired - Fee Related
-
1996
- 1996-07-18 TW TW085108734A patent/TW310487B/zh active
- 1996-07-23 EP EP96305411A patent/EP0756349B1/en not_active Expired - Lifetime
- 1996-07-23 DE DE69615961T patent/DE69615961T2/en not_active Expired - Fee Related
- 1996-07-27 CN CN96112102.5A patent/CN1104055C/en not_active Expired - Fee Related
- 1996-07-29 US US08/688,163 patent/US5668513A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1150703A (en) | 1997-05-28 |
| JP3341101B2 (en) | 2002-11-05 |
| JPH0946101A (en) | 1997-02-14 |
| US5668513A (en) | 1997-09-16 |
| TW310487B (en) | 1997-07-11 |
| EP0756349B1 (en) | 2001-10-17 |
| DE69615961D1 (en) | 2001-11-22 |
| DE69615961T2 (en) | 2002-05-29 |
| EP0756349A1 (en) | 1997-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |